Paper-feed.



H. BILGRAM. f

yPAPER FEED.

.APPLICATION FILED 0012.30, 1902.

PATBNTBD JULY 21, 1903.

WITNESSESI l l l l lds Nava-1,215.

PATENT -remmen .rely 21, 1903. I

OFFICE. f

HUGO BILGRAM, OF PHILADELPHIA, PENNSYLVANIA.

` PAPER-FEED.

SPECIFICATION forming part of Letters Patent N o'. 734,215, dated July 21, 1903.

Application filed October 30, 1902. Serial No. 129,439. (No model.)

To all whom, t may concern:

Be it known that I, HUGO BILGRAM,a citizen of the United States, residing in the city and county of Philadelphia and State of Pennsylvania, havefinvented a new and useful lmprovement in Paper-Feeds, of which the following is a specification.

My invention consists in a method for feeding a continuous band of paper or other material through two machines or twice through the same machine, so that the operations performed each time shall correctly register with one another. This 'is accomplished, first, by providing the band of paper with a series of cuts, holes, or indentations capable of forming obstructions; second, by providing aV periodical feeding device to than required, and, third, by temporarily releasing' the feeding mechanism and withdrawing the excess previously fed, permittin'g the said obstruction to limit the amount so Withdrawn. v v

'lhe accompanying drawings show the application of the device to the feeding apparatus of a wrapping-machine, the wrapper being fed to the machine from a continuous band which has previously been passed through a printing-machine` and requires to be cutv as printed. n

Figure 1 shows a side view of the feeding device. Fig. 2 represents the top View of the band of wrapping-paper.

In printing the paper preparatory to feed- .ing it to the wrappiug-machinethe paper is v provided with short transverse cuts B B, as shown in Fig. 2, the cuts marking the lines where the paper is to be cut 0E. These cuts may be madein the process of printing.

In the drawings, l is the frame of the feeding device, in which the driving-shaft 2 is journaled, rotating in the direction indicated by an arrow.- To this Ashaft are secured the cranks 3 and 4 and the cam 5. The crank 3 is connected with the pawl-lever 6 by the connecting-rod 7. The pawl S, carried by the said pawl'lever, engages with the ratchet- Wheel 9, secured to the shaft 10, to which the lower paper-feed roller 11 is securedf The upper feed-roller 12 is carried by the arbor 13,.journaled in the bearings 14, whichare mounted in the housing 15 free to move vertically and pressed downward by springs 16.

feed slightly more' 29 insuch a The bobbin` of paper 17, prepared as described, is held in the frame, as shown, the paper band A passing over the roller 18' to the feed-rollers 11 and 12, by which it is fed to the table 19. A mechanism for cutting the paper is provided `as follows: 'The crank 4 is connected with the connecting-rod21. -To this slide is secured the'blade 22 of the paper-shears, which passes through aperforation of the table 19.

Above the table is located the stationary shear-blade 23.

For properly adjusting the paper before cutting the following device is provided: The lever 24, having its fulcrum at 25, carries the the slide 20 by means of roller 26 and by means ofthe connecting-rod f l27 is connected with the slide 28, which passes through the said perforation of the table 19.

, The upper end of the said slide 28 is designed to be below the face of the table 19 when in its lowest position and above the lower edge of the shear-blade 23' when position. The lever 29, the fulcrum of which is at 30, .carries the jointed to the rod 32. The upper end of this rod embraces the arbor 13 of the upper feedroller 12 in such a way that by a raising of the cam-roller 31 the feed-roller 12 is raised from contact with the lower feed-roller 11. The cam 5 is adapted to operate the levers 24 and way that the lever 24 is first operated upon and the lever 29 immediately thereafter.

A light weight 33, held by the lever 34, rests on the band of paper A as it passes from the roller 18 to the feed-rollers 11 and 12.

' The operation of the device may be described as follows: As the shaft 2 is rotated the crank 3 impartsy an intermittent motion to the paper-feed roller l1, which, in conjunction With the the paper tothe table 19. After `this operation is. completed and while the pawl 8 is returning the high partof cam 5 will raise the roller 26, and with it the slide 28. The

in its uppermost cam-rollerl 31 and is upper roller 12, will feed feed-rollers 11 and 12 being designed to feed slightly more paper than cuts B of the band of paper will have just passed the edge of the shear-blade 23 and the upper end of the slide 28` will bend the needed, one of the frontlip of the cut of the paper upward, sepf arating the edges of the cut. Immediately after this the high part of the cam 5 will come into contact with the roller 31 and will raise the feed-roller -12 from its seat, releasingthe grip of the feed-rollers and allowing the weight 33 to partially withdraw the paper previously fed; but since the raised lip of the cut in the paper held up by the slide 28 will impinge against the face of the shearblade 23 the paper will be withdrawn only until the cut is in line Withthis face, which forms an abutment, preventing a further withdrawal. As the rotation of the shaft continues the shear-blade 22 Will come into operation, and before the cutting is completed the cam-rollers 26 and 3l will be allowed to return to their normal positions Vready'for a repetition of the described process. The paper will thus invariably be cut precisely in line with the short cuts previously made in the endless band.

The device is applicable to many other uses in which a band of paper or other material is to be subjected to consecutive mechanical operations that shall register with one another.

I claim as my invention- 1. In combination, an intermittent feeding device adapted to feed a continuous band, means for intermittently releasing the said feeding device, means for partially withdrawing the band previously fed and an abutment adapted to intercept thewithdrawal of the band by impinging against an obstruction with which the said endless band has been previously provided, substantially as described.

2. In combination, an intermittent feeding device adapted to feed a continuous band, meansfor raising one lip of a cut with which the said band has been previously provided, means for intermittently releasing the said feeding device, means for partially withdrawing the band previously fed and an abutment adapted to intercept the withdrawal of the band by impinging against the said raised lip, substantially as specified.

3. In combination, an intermittent feeding device adapted to feed a continuous band, means for raising one lip of a cut with which the said band has been previously provided, means for intermittently releasing the said feeding devicemeans for partially withdrawing the band previously fed, a stationary shear blade adapted to intercept the withdrawal of the band byimpinging against the said raised lip and a movable shear-blade adapted to cut the band through the said cut, substantially as described.

I-IUGO BILGRAM.

Witnesses:

ISAAC THOMPSON, HENRY B. JOHNSON. 

